| Title: | Russell's Biology Midterm Exam |
| Description: | What does Mitochondria do? make energy for cell What is the variable that changes in an experiment? independent variable What does the sodium-postassium pump require to move ions across the cell membrane? energy What do Lysosomes do? Lysosomes break down cellular waste products, fats, carbohydrates, proteins. What are the characteristics of all living things? reproduction metabolism cellular organization -require energy to carry on life processes -able to reproduce -composed of cells living things What are all living organisms composed of? cells What characteristic of all living things does homeostasis relate most directly to? stability What is the process by which organisms make more of their own kind? reproduction Luring Mid term Biology cut apart and study This is what causes children to resemble their parents heredity During what process does carbon dioxide and water, in the presence of light, used to form sugars and oxygen gas? photosynthesis What is an hypothesis? testable possible explanation of an observation How are scientific hypotheses most often tested? by the process of experimenting What is the planned procedure to test a hypothesis? experiment What is the variable that is measured in an experiment? independent What are atoms composed of? protons, neutrons, electrons Where are the electrons of an atom? occupy the space surrounding the nucleus What is the smallest particle of matter that can retain the chemical properties of carbon? carbon atom What is a substance that is composed of only one type of atom? element What is all matter composed of? atoms What kind of molecules do Ionic bonds form between? opposite charges What pH do Acidic solutions have? less than 7 What are organic macromolecule? carbohydrate lipid nucleic acid What is sucrose? a carbohydrate What organic molecules are classified as carbohydrates? sugars Where are long chains of amino acids found? in proteins What are saturated fats, cholesterol, and earwax? examples of lipids What is a molecule shaped like a spiral staircase (double helix typical of? deoxyribonucleic acid What are two types of nucleic acids? DNA and RNA What does DNA store? heredity information What is the molecule on which an enzyme acts? substrate What conditions affects the function of enzymes? pH heat enzyme concentration What power is the metric system of measurement based? powers of 10 What can cause fuzzy images viewed with a microscope? may be due to poor resolution What would a microscope with a 3x objective lens and a 10x ocular lens produce a total magnification of? 30x What would a microscope with a 5x objective lens and a 10x ocular lens produce a total magnification of? 50x What would a microscope with a 4x objective lens and a 10x ocular lens produce a total magnification of? 40x What are the smallest units of life? cells What size must a cell be to function most efficiently? small What is one difference between prokaryotes and eukaryotes? prokaryotes do not have a nucleus What is a characteristic of prokaryotes? Their evolution preceded eukaryotes. which means prokaryotes came first What is an example of a prokaryotic cell? bacterium What do only eukaryotic cells have? membrane-bound organelles What is a structure within a eukaryotic cell that performs a specific function? organelle What are short hairlike structures that protrude from the surface of a cell and are packed in tight rows? cilia What encloses the contents of a cell, allows materials to enter and leave the cell, is selectively permeable? the cell membrane What is the double membrane surrounding the nucleus? nuclear envelope What is one imporant organelle that helps maintain homeostasis by moving substances from one part of the cell to another? endoplasmic reticulum |
| Number of Cards: | 79 |
| Author: | mlrussel20 |
| Created: | 2007-12-15 |
| Tags: | midterms |
| Private: | No |
| Favorite Count: | 0 |
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